Saint-Prex: population and statistics
Saint-Prex has a population of 5,923 (2025) across 5.5 km², or 1,069 people per km². It ranks 348 of 2,115 municipalities by population. Its population is growing: +5.7% between 2015 and 2025.
- 5,923 residents
- 5.5 km²
- 1,069 people/km²
- 396 m
Key points
Among the 300 municipalities in Vaud, Saint-Prex ranks No. 30 by population.
Wood heating systems: 0.9% in Saint-Prex, compared with an average of 5.6% in Vaud and 9.3% nationally.
Share of foreign nationals: 36.1% in Saint-Prex, compared with an average of 34.3% in Vaud and 27.7% nationally.
A 1 kWp solar panel tilted at 38° generates about 1,233 kWh a year here.
Saint-Prex in numbers
Where is Saint-Prex?
Population of Saint-Prex over time
Saint-Prex had 5,603 residents in 2015 and 5,923 in 2025.
| Year | Population |
|---|---|
| 2020 | 5,855 |
| 2021 | 5,860 |
| 2022 | 5,871 |
| 2023 | 5,905 |
| 2024 | 5,865 |
| 2025 | 5,923 |
Did you know?
- “Wood heating systems”: lower than in 99% of municipalities.
- “Share of foreign nationals”: higher than in 93% of municipalities.
- “Share of single-family houses among residential buildings”: lower than in 92% of municipalities.
- Its area is roughly equal to 776 football pitches.
- Its population density is 4.6 times the national average.
- The nearest municipality is Lussy-sur-Morges, 1.9 km away.
- The nearest more populous municipality is Morges (17,803 residents), 4.3 km away.
All indicators for Saint-Prex
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 16.8% | 17.1% | 20.7% | ranked 1,550 of 1,811 |
Housing
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,966 | 449,691 | 4,927,050 | ranked 378 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 12.2% | 25.9% | 23.3% | ranked 1,502 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 32.0% | 24.7% | 25.3% | ranked 479 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 49.0% | 52.6% | 69.5% | ranked 1,660 of 1,806 |
Energy
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 78.0% | 72.6% | 53.5% | ranked 138 of 1,806 | |
| Heat pumps as main heating (2026) | 10.8% | 6.9% | 13.7% | ranked 1,152 of 1,806 | |
| Wood heating systems (2026) | 0.9% | 5.6% | 12.4% | ranked 1,783 of 1,806 | |
| District heating (2026) | 0.3% | 5.5% | 1.4% | ranked 1,399 of 1,806 | |
| Photovoltaic installations (2026) | 219 | 36,655 | 329,600 | ranked 456 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 542.6 kW | 784.6 kW | 1,134 kW | ranked 1,635 of 1,806 | |
| Rooftop solar electricity potential (2026) | 42.5 GWh/year | 6,033 GWh/year | 64,783 GWh/year | ranked 429 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,169 kWh/inh. | 6,985 kWh/inh. | 9,356 kWh/inh. | ranked 1,355 of 1,810 |
Economy
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 374 | 67,877 | 728,011 | ranked 379 of 2,112 | |
| Entities listed in the commercial register (2026) | 414 | 67,255 | 762,757 | ranked 356 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 69.9 | 77.9 | 64.9 | ranked 713 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 69.3% | 67.6% | 65.7% | ranked 576 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 27.5% | 26.9% | 29.0% | ranked 1,038 of 1,808 |
Employment
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 2,842 | 498,823 | 5,679,518 | ranked 349 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 479.8 | 577.7 | 362.9 | ranked 534 of 1,810 | |
| Share of jobs in services (2024) | 58.6% | 79.0% | 63.6% | ranked 1,073 of 1,804 | |
| Share of jobs in industry and construction (2024) | 39.4% | 16.3% | 24.2% | ranked 307 of 1,776 |
Society
| Indicator | Saint-Prex | Vaud | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 36.1% | 34.3% | 18.9% | ranked 131 of 1,811 |
Sunshine and temperatures: Saint-Prex
Frequently asked questions
What is the population of Saint-Prex?
Saint-Prex has 5,923 residents (2025), ranking 348 of 2,115 municipalities.
How big is Saint-Prex?
Saint-Prex covers 5.5 km², with a density of 1,069 people per km².
Is the population of Saint-Prex growing?
Between 2015 and 2025, the population of Saint-Prex went from 5,603 to 5,923, a change of +5.7%.
Where is Saint-Prex?
Saint-Prex is in Vaud. It belongs to District de Morges (district). Latitude 46.484, longitude 6.457.
Wood heating systems: what is the figure for Saint-Prex?
In Saint-Prex, “Wood heating systems” stands at 0.9% (2026), ranking 1,783 of 1,806 municipalities; the national median is 12.4%.
Share of foreign nationals: what is the figure for Saint-Prex?
In Saint-Prex, “Share of foreign nationals” stands at 36.1% (2025), ranking 131 of 1,811 municipalities; the national median is 18.9%.
How much electricity does a solar panel produce in Saint-Prex?
In Saint-Prex, a 1 kWp south-facing system tilted at 38° produces about 1,233 kWh a year.
Which municipalities border Saint-Prex?
The nearest to Saint-Prex are Lussy-sur-Morges (1.9 km), Lully (VD) (2.0 km), Tolochenaz (2.0 km), Etoy (3.1 km), Buchillon (3.7 km).